加密对比
初学者最常比较的加密概念并排解析。每个指南包括定义、优点、缺点、使用场景和常见问题。
Bitcoin vs Ethereum: What's the Difference?
Bitcoin is a decentralized digital currency designed as a store of value with a fixed 21 million supply. Ethereum is a programmable blockchain that runs smart contracts, powering DeFi, NFTs, and thousands of decentralized applications. Both use blockchain, but they serve fundamentally different purposes.
Hot Wallet vs Cold Wallet: Which Is Safer?
A hot wallet is an internet-connected crypto wallet used for frequent trading and daily transactions, offering convenience but higher hack risk. A cold wallet stores private keys offline (usually hardware), providing maximum security for long-term holdings but requiring more steps to spend.
CEX vs DEX: Centralized vs Decentralized Exchanges
A centralized exchange (CEX) is a company-operated trading platform that holds user funds and requires KYC, offering speed, liquidity, and fiat on-ramps. A decentralized exchange (DEX) runs on smart contracts, lets users trade directly from their wallets without KYC, but has lower liquidity and higher complexity.
Proof of Work vs Proof of Stake: Consensus Compared
Proof of Work (PoW) secures blockchain networks by requiring miners to solve cryptographic puzzles, consuming significant energy. Proof of Stake (PoS) secures networks by requiring validators to stake tokens as collateral, achieving similar security with ~99% less energy. Bitcoin uses PoW; Ethereum switched to PoS in 2022.
Day Trading vs Swing Trading: Which Style Fits You?
Day trading opens and closes positions within a single day, requiring constant screen attention and quick decisions. Swing trading holds positions for days to weeks, capturing medium-term moves with less screen time but higher overnight risk. Beginners should usually start with swing trading.
Trading vs Investing: What's the Difference?
Trading seeks profit from short-term price movements through active buying and selling. Investing holds assets for months to years, profiting from fundamental value growth. Trading requires more time and skill; investing is more passive and beginner-friendly.
Spot Trading vs Futures: Which Is Right for You?
Spot trading involves buying and selling the actual asset (you own it). Futures trading uses contracts to bet on price direction without owning the asset, often with leverage that amplifies both gains and losses. Spot is simpler and safer; futures are advanced.
Layer 1 vs Layer 2: Blockchain Scaling Explained
Layer 1 is the base blockchain (Bitcoin, Ethereum) that handles security and consensus. Layer 2 is a network built on top of Layer 1 (Lightning Network, Polygon) to process transactions faster and cheaper while inheriting Layer 1's security.
Coin vs Token: What's the Difference?
A coin is a cryptocurrency with its own dedicated blockchain (Bitcoin, Ethereum). A token is a digital asset built on top of an existing blockchain (ERC-20 tokens on Ethereum). Coins are native assets; tokens are programmable assets on borrowed infrastructure.
Stablecoin vs Cryptocurrency: Stability vs Volatility
Stablecoins are cryptocurrencies pegged to a stable asset (usually USD) to minimize price volatility. Regular cryptocurrencies (Bitcoin, Ethereum) have floating prices driven by market demand. Stablecoins are for trading and payments; volatile crypto is for speculation and store of value.
Crypto Exchange vs Wallet: Custody vs Self-Custody
A crypto exchange is a platform that holds your crypto and executes trades (convenient but you don't control the keys). A crypto wallet stores your private keys directly (self-custody, maximum control). Exchanges are for trading; wallets are for secure storage.
Bitcoin vs Altcoins: Store of Value vs Innovation
Bitcoin is the first and largest cryptocurrency, designed as a decentralized store of value with fixed supply. Altcoins are all other cryptocurrencies, offering diverse features like smart contracts (Ethereum), faster transactions (Solana), or privacy (Monero). Bitcoin is lower risk; altcoins have higher growth potential but more risk.
Custodial vs Non-Custodial Wallets: Who Controls Your Keys?
A custodial wallet means a third party (exchange, provider) holds your private keys — convenient but you trust them. A non-custodial wallet means you hold your own keys — maximum control and security, but you bear full responsibility for not losing them.
Limit Order vs Market Order: Execution Strategy
A market order buys or sells immediately at the best available price — guaranteed execution but uncertain price. A limit order sets a specific price — guaranteed price but uncertain execution. Market orders for speed; limit orders for control.
Bull Market vs Bear Market: Trend Direction
A bull market is a period of rising prices driven by optimism and buying pressure. A bear market is a period of falling prices driven by pessimism and selling pressure. Bull markets favor long positions; bear markets favor short positions or cash.
Bitcoin vs Gold: Store of Value Comparison
Bitcoin is a digital store of value with a fixed 21 million supply, transferable globally in minutes. Gold is a physical store of value with a 6,000-year history, widely accepted but cumbersome to move. Both hedge against inflation but differ in volatility, custody, and regulatory treatment.
Crypto vs Stocks: Investment Asset Comparison
Crypto markets run 24/7 with high volatility and no central authority, suited for risk-tolerant investors. Stocks represent ownership in regulated companies, offer dividends, and trade during business hours with lower volatility. Both belong in a diversified portfolio.
DEX vs CEX Trading: Exchange Comparison
A DEX (Decentralized Exchange) enables peer-to-peer trading via smart contracts without holding user funds. A CEX (Centralized Exchange) is a company that holds user funds and matches orders off-chain. DEX offers privacy and self-custody; CEX offers speed, liquidity, and fiat onboarding.
Stablecoin vs CBDC: Digital Currency Comparison
Stablecoins are privately issued tokens pegged to a fiat currency (e.g., USDC, USDT) that run on blockchains. CBDCs (Central Bank Digital Currencies) are digital forms of sovereign currency issued directly by central banks. Stablecoins offer DeFi integration; CBDCs offer government backing and stability.
Hardware Wallet vs Software Wallet: Crypto Storage Comparison
A hardware wallet stores private keys on an offline physical device, providing maximum security against hacks. A software wallet runs on a phone or computer, offering convenience for daily transactions but exposing keys to online threats. Best practice: use hardware for long-term storage, software for daily spending.